Need help with BOV willing to pay

I drove up to max Morin recently to have him Install some parts including a whoosh BOV adaptor. The BOV adaptor has made my car flutter a tun. I know a ton of people like the flutter but honestly I prefer the sound it made with the stock bypass valve. It took max 10-15 min to do the adaptor. So it’s probably a 30-60 min job for normal people. But I’m looking for anyone who’s willing to help me remove it. I would go back to max but I had to take time off work and drive 2.5 hours each way. I live in ct

Just three bolts and remove the part, no? Is this the part?

Ford Fiesta ST Turbo / Engine – Tagged "Fiesta Blow Off Valve" – whoosh motorsports (whoosh-motorsports.myshopify.com)

Wait...you..don't like flutter noises?

@woodford86

it’s not that I don’t like flutter. But every time I hear it I feel like I’m hurting my turbo.

also the part made the actual blow off sound like an air brake. Just overall the sound is not good

I don't know man that loud BOV spacer psshhhhhhhh sound is kinda nice.

You are not Hurting your Stock Turbsky..its just Venting to atmosphere and no longer re-circulating like the BPV. It will be fine and will grow on you..... give it a couple months.

Don't worry Stkid93, I didn't like all the noises at first too but they did grow on me. Now it's funny to see people's neck break as I'm passing by🤣😂

@TyphoonFiST

see that’s my problem I don’t know who or what to trust it’s widely believed that flutter and compressor surge is extremely bad for the turbo but then I see people saying it’s not

If it makes you feel better I ran one for 40k before I went BT. No issues whatsoever * Just the ability to startle pets and people alike...

You're not experiencing compressor surge.

Nop
Nope* never did

@the duke

wait so then what is it?

@the duke

also, i wanted to ask about the fac that it only vents sometimes. is this normal as well?

There are two main groups of turbo noises.

The “PSHHHHHH” sound is the excess boost being vented to atmosphere by the BOV you just had installed. It is 100% harmless. With the stock setup, it was fed back into the intake and inaudible. To answer your question, you won’t hear it all the time …. only when there’s enough boost built to create the noise, and you come off the throttle in such a way to create intake vacuum to activate the BOV (which can be mechanical or ECU controlled, depending on type).

The second set of turbo noises ….. this is a higher pitched sound. Sometimes it’s described as a “STU-TU-TU-TU” noise. Other times, it can be just a quick, high pitched screech, depending on boost level, how quick you’ve come off throttle, and a host of other factors like intake type, exhaust headers, etc. This is the sound of the turbines “surging” because you are slowing them down suddenly from high RPM while still under boost pressure, ie before the BOV can do the job described above. Yea, that’s compressor surge. While it technically is causing additional wear, it’s not the sentence of death it was to turbos 30 years ago, and the wear issue is often exaggerated by internet lore. Many folks go out of their way to get these sounds and, conversely, they can be nearly impossible to eliminate if you have an open intake, open exhaust, etc.

Bottom line, if you don’t like the noises, I get it. But, don’t dislike them because of anxiety.

@cidsamuth

i still think my part is defective as when it’s cold it makes a loud psshhh every time I let off regardless of throttle position and never flutters but when it’s warm it never vents regardless of throttle placement and only flutters

i'm not in your car so maybe it is defective, but for me that sounds like your BOV is working.

when it's cold out your turbo can build boost *a lot* faster than when it's warm/hot. basic physics of air density vs temperature. your turbo can gulp a lot more cold air then it can hot air. so when it's cold your turbo will need to get rid of boost a lot more often since it can build it a lot faster then when it's warm out.

i also might be talking out my ass so take that with a big grain of salt.

What BOV do you have Stkid93, the whoosh VTA adapter on stock recirculating valve? If you do then it's working fine. Don't worry about your stock turbo it's pretty robust. There's plenty of stock turbos laying in the BT forum members garages. Keep driving and enjoy the noises.😎

I have a turbosmart em bov dual port on my car. It vents no matter the temperature. I have had it since December of 2018.

https://whoosh-motorsports.myshopif...smart-em-bov-dual-port-v2-fiesta-st-2014-2018

@esp_martin @Ford ST

I’m not talking about the external temperature I’m talking about when the motor is cold and when the motor is warmed up.

when I first start driving the whoosh BOV vents to atmosphere and makes the pshh when car warms up it stops venting completely and only flutters with no pshh.

im no expert but that doesn’t seem right to me, so I’m asking why it’s doing that. The BOV should work the same regardless of whether the car is warmed up or not. And should always vent when boost is built. And I’m having trouble which what is actually true, I’ve heard everything from

“ the flutter your hearing isn’t compressor surge” (which if that’s true what the hell is it)

to

“you will be fine”

to

“compressor surge can ruin your turbo super fast”

I’m also wondering why the car never once surged before the BOV adaptor and now it’s surging all the time. I just don’t understand enough about blow off valves to understand what is happening and everyone is saying different things and that scares me

@Stkid93

Please tell us what BOV adaptor you have currently on the car. Your posts talk about the Whoosh adaptor and your signature talks about the GFB DV+ VTA, which are 2 completly different products. I started with a simple BOV adaptor and currently have the GFB VTA so I'm familiar with both.

The simple Whoosh BOV adaptor should not change anything on the behavior of the stock BPV as it's merely a spacer. The stock BPV behavior is easy to understand, it's an on/off electrical solenoid without any other positions. As soon as the throttlebody is closed, the BPV solenoid is activated and vents for as long as the throttlebody is closed. No matter if you're on full boost or under vaccuum cruising at low speed. The initial "Psshh" will be louder at full boost but the sound should basically always be the same because the behavior is the same. If you let the throttle off after the initial "Pshhh" you should hear a very long whooshing sound of the turbo spinning air to the atmosphere. That's why you always should hear whooshing, even when not on boost and shifting gear.

For the GFB, since there's an added spring and the piston, the behavior is a little different but not that much because it only changes the behavior to be smoother than either only on or off. You shouldn't hear anything when letting go the throttle under vaccuum and only the sudden "Psshh" without any additionnal whooshing even if you let the throttle closed for a long time since the added spring is designed to push the piston back as soon as there is no pressure inside the charge piping, hence the no sound when shifting when cruising . But I don't recall hearing any flutter with mine, no matter what circumstances. Thing is, my car is stored since november so I don't have a recent memory of it's behavior, but I'm pretty sure I never heard flutter.

As for what you describe, and assuming you do have a GFB product, I'm with you that you may have a product that is either defective as you suspect or maybe installed wrong. The piston do have a really tight tolerance. Are you positive that the BPV solenoid is pluged in? I forgot to replug mine the first time I installed the adaptor and did cause flutter.